v3.26.3
Cash and cash equivalents - Narrative (Details) - USD ($)
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Disclosure of information for cash-generating units [line items]        
Cash and cash equivalents $ 22,168,720 $ 20,144,250 $ 23,654,699 $ 29,283,942
Kabanga Nickel Company Ltd        
Disclosure of information for cash-generating units [line items]        
Cash and cash equivalents 5,930,000 6,570,000    
Restricted cash and cash equivalents $ 87,858 $ 149,694